a.) Gus box cutters Victor for allowing himself to be seen at a crime scene, and then invests time into wild unpredictable indiscreet Jesse? Surely it does have to be "all about Walt". Jesse's unpredictablity doesn't make sense for meticulous Gus as either a cleaner or a cook replacement for Walt.

2.) With cameras and minders on the lab, along with chemical supply receipts, surely Gus should have Walt's recipe down cold.

iii.) How the heck is Mike cleaning up after the semi trailers being gunned down. Surely he can't be hiding all that in the desert somewhere and the local law has no clue. No one ever drove past those shot up trailers and reported them?

a) I think he knows that he can't get Walt to work without Jesse, but building a divide between them will help him in the future.

2) It is more than just the recipe, it is knowing what to do if something in the chain isn't right, or being able to catch if one of the ingredients is off.

iii) Good question, I've been wondering how Gus gets that done. How do you hide something like that quickly enough to not be noticed.